.search-container{
    position: sticky;
    top: 0;
    left: 0;
    width: 99.9%;
    height: 9rem;
    background-color: #0af;
    display: flex;
    justify-content: center;
    align-items: center;
} 
.search_input{
    display: flex;
    justify-content: center;
    align-items: center;
    width: 90%;
    height: 6rem;
    font-size: 3rem;
    padding: 0.1rem 1rem;
    background-color: #fff;
}
.search_tips{
    height: 4rem;
    font-size: 2.5rem;
    color: #999;
}